Safety station for subterraneous passageways



May 29,

' G. M. LOWE SAFETY STATION FOR SUBTERRANEOUS PASSAGEWAYS Filed Sept. '7. 1921 2 Sheets-Sheet l attenta* 2 Sheets-Sheet 2 May 29, 1923. G. M. LOWE SAFETY STATI`ON FOR SUBTERRANEOUS PASSAGEWAYS Filed Sept. '7, 1921 ay/fjzw,

Patented May 29, 1923.

GEORGEQMQLOWE, or Bowan,y 'coLoRAnof SAFETY strnrroiv non lsun'rEnnAi\T1f:oU\s; rassnenwars ;Appiieamn nea september 7, 1921. yserial 115,498,955.'

To all 107mm t Imay concern.- p

Be it lknowny that'I, GEORGE MfIJoWE, af citizen of `the United States, residing at Bowen, in the county of vLasAniinas and State of Colorado; vhave invented certain new and useful Impro'vementsv in Safety Stations for Subterraneous l'Passa-geways, of which the following is aspeciication, reference being had tothe accompanying draw'.

ings.

This invention relates'to safety stations for subterraneous passageways'and'has' relation more particularly to a station designed for use within the passageway or gallery of a coal mine or vthe like, and it is anv object of the `invention to provide a station of'this general character having noveland improved g means whereby lthe voccupants thereof may be supplied vwith fresh air. and )water and mayalso have communication eXtc-riorly of themine'.

Anotherobjyect of the invention to provide a novel andv improved station of this general character lwhich,is'particularly desirable for use after amineexplosion andi whichV isso arranged aslto be free of'pressure and which includes a normally'V closed exit whereby ingressi ofA gases or the like within the chamber is prevented.

An additional object of the invention vis to provide a'station of this general character having novel and improved .means whereby asupply of fresh air may" be' circulated therein, together with means whereby the air may be prevented ,from discharging within the station should necessity require.

'The invention consists in the details of construction and in the combination and arrangement vof the vseveral parts of my. im#- proved safety station `for subterraneous pas# sageways whereby certain important advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention wil hereinafter be definitely claimed. e

In order that my invention may be the better understood, I will now proceed to describe'the same with reference to the accompanying drawings, wherein:

Figure l is a diagrammatic view of a mine having arranged therein stations constructed in accordance with an embodiment of my invention;

Figure 2 is a vertical Vsectional view taken through one of the cabins or chambers ;A and Figure 3` is -a horizontal view taken through one of the cabinsy or chambers'.

-As disclosed in the accompanying drawings, Gr'denotes` a mine gallery orl passage` way having branching therefrom the entries E in communication with which are the mining orworking roomsl R. a

Each-of the entries E at a point preferably in relative close roximity to thel gal-v lery or passageway is'provided with a station S, sai-d 'sation'including a cabin or chamber 1 of desired dimensionsand an entranceway 2 leading from theentry E. The

cabingl and entranceway 2 are cut Iout'o'f; ther p coal or other formation forming-'a wall o f the entry E land'said cabin'l and 'entranceway 2 have'` the `walls'thereoflined with 1a" layer of cement, preferably of va thickness of siX inches. By having the cabin lr andthe entranceway 2 cut in'lthewall of an entry E, the-same are positioned or located to be free ofthe force orlpressure created by an explosion within the mine.

The entranc'eway 2 is substantiallyelonf gated and preferably of a length "of about :six-feet andV associated with each end por;

tion of the'entranceway 2 is a swinging door 3; `l=The doorsv 3 are normally maintained closed through,y the action of the springs 4i orr theirE equivalent. By this arrangement ofthe doors v3, one of said doors will-be closed when the otheris'opemed,y

To prevent the entrance of gasesorthe like within the cabin 4l through the entrance'- way 2, the marginal portions of eachof the doors 3 are stepped, as at 5,*the abutting or coacting portions of the entranceway 2being similarly stepped, as at 6. f

In `additiontothe regular fan housek H exteriorly of thernine for maintaining .the y desired ventilationjwithin the mine, I also provide an additional fan house F exteriorly of the mine. Leading from 'the' fan house F to one of the cabins 1 is an air pipe line 7, said pipe line being laid under ground and covered. The pipe line extends up-l wardly and vertically within the cabin-1 through the `floor thereof and the outlet or eduction end of the pipe, within the cabin l, is normally open.

The cabins 1 within .the mine, and more particularly the cabins associated with-the gallery, are connected in seriesk by. an air l'lO 

